I have a Sharp LC-60LE660 Will power on but screen goes black, sound still plays and screen will continue to come on and off. Now it is off more than on.

SOURCE: Sharp LCD LC-46D64U

Try resetting the TV. Here's how to do it - Unplug the TV's power cable. Keep the Channel Down and Volume Up buttons on the TV pressed and plug the power cable back into the outlet. You will hear a click when you plug it back in if the reset is successful. Hopefully this should restore your video and audio.

SOURCE: Sharp Aquos LC-C3242U LCD screen go's black after power on.

I have (had) the exact same problem with my Sharp LC40C32U. I purchased it at CostCo 1 1/2 years ago. Because they changed their return policy I thought I was out almost a $1,000 but decided to ask them if they could do anything. Wouldn't you know they had an extended warranty that was still in affect. I called their service people and spent over an hour on the phone with them. After going through all the troubleshooting steps they arraigned for an in home repair (free of charge).The technician that came new exactly what the problem was and how to fix it. The kicker is no parts were bad, over time the 2 grounding points on one circuit board were not making contact correctly. He explained that the problem would be worse when the set was cold, as it heated up the grounding points would make a better contact. That's why it seemed to occur everyday first thing in the morning. He took the back off, removed the circuit board and cleaned the contacts. When he put it back together he tightened the screws down fairly tight, explaining that the factory does not tighten them enough which is why I (we) have the problem in the first place. This took all of about 20 minutes. I have not had any problems since. If you live in San Diego, CA the company that fix'ed my Sharp is Advanced Electronic Service.

SOURCE: sharp aqous lc 37 in tv power no picture,sound

Your control board seem's defective or the inverter board (associated circuits) are bad. This is common in most TFT-LCD Tv's.......

SOURCE: sharp aquos lc-52se94u green screen

If it it new, take it back. The product is not working properly.

SOURCE: my sharp lc 32d42u shut off and won't turn back on

IF YOU STILL HAVE SOUND I AM PRETTY SURE WHAT THE PROBLEM IS...